What's your first K-Pop group that ......

first kpop song that i heard was O.K. by b1a4. 
but it wasn't until i got into ze:a and mainly exo that i fell in love with kpop.

First songs were B1A4 - What Do You Want To Do and SHINee - Ring Ding Dong. I started listening to Kpop very casually after them. But Bangtan got me into stanning. I now listen to quite a few groups but Bangtan is my bias group.

BTS - Save Me, I was not really into K-pop until recently. I mostly watched Korean dramas and my little sister knew that and she suggested that I should watch this music video by a group called BTS and I liked it. Still listening to BTS but I have been enjoying other groups this week such as GOT7 and B.A.P.

The Chaser by Infinite

The first kgroup i've listened was DBSK with Balloons back in 2007, but I got into kpop world with LaLaLaLa by BIG BANG in 2008.

My first song was Balloons by TVXQ but the one that got me into kpop was Super Junior No Other and Sorry Sorry

I first got in the kpop world with Nuest, and then G dragon, but I don't know why I stopped following groups. And then 1.5 -2 year ago, I saw BAP's One shot and just totally died. Now I'm back to the world of kpop hehe